The landlord said in its lawsuit that Red Robin’s lease provides for a current base rent of $101,979 per month, a figure that escalates during the term of the lease. The company also is required to pay its share of building operating expenses such as property taxes, as is common in commercial leases.

Red Robin didn’t pay its landlord anything in April, according to the lawsuit. As of the date the lawsuit was filed, Red Robin owed nearly $186,000, which includes the base rent, building operating expenses and charges for paying late.